Solidus and Viniculums
Any idea what a solidus or a viniculum are? They play strong roles in mathematics. In fact, you may use them every day...or at least, often.
A solidus is the proper name for the oblique stroke used when writing a fraction, such as 1/2.
Its other "common" names are diagonal, separatrix, virgule, shilling, slant, or slash.
A viniculum is the proper name for the line placed over repeated digits when writing a repeating decimal.
Also, a vinculum is involved in doing long division. Originally division of 34 by 6 was written 6)34. Later, the vinculum was added above the 34 to make the now "official" division symbol.
A viniculum is also used in the now official root notation...and was even used to represent a grouping of terms (before the use of parentheses).
Now, you can sleep without worrying...